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krunal_299
Joined: 24 Jan 2008
Posts: 46
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 09 May 2008 8:24 Suggestion for DC motor |
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Hi everyone here!
I am looking for a DC motor which has to run in velocity mode(no feedback control is required) at aprox. 2000 to 3000 rpm.
I have searched a lot to select motor type for that purpose.
I wish to use BLDC but it needs 3 phase control and PMDC has brush to maintain.
Any body suggest me a good alternate for this.
My requirement is as under:
90 to 100 Watt, DC motor upto 24 volt, 2000 to 3000 rpm w/o closed loop control.
Regards!
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umery2k75
Joined: 19 Apr 2006
Posts: 228
Helped: 19
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| 09 May 2008 10:54 Re: Suggestion for DC motor |
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| Quote: |
| I wish to use BLDC but it needs 3 phase control and PMDC has brush to maintain. |
Do you want single phase Brushless DC motor?
Are you sure it doesn't come in single phase?
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krunal_299
Joined: 24 Jan 2008
Posts: 46
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| 10 May 2008 8:20 Suggestion for DC motor |
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| Not exaclty know about single phase BLDC.
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FvM
Joined: 22 Jan 2008
Posts: 2240
Helped: 374
Location: Bochum, Germany
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| 10 May 2008 16:58 Re: Suggestion for DC motor |
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| If you need a motor that has some torque at lower speed, a usual BLDC with 3 phase positional sensors is optimal. The effort isn't too high, the electronics fits in the motor housing. But also an asnchronous two or three phase motor with a variable frequency drive could be used. It's start-up torque is lower than with the BLDC but may be sufficient for many applications.
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